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#1 2023-04-09 18:39:10
- DaveBullet
- Member
- Registered: 2023-03-14
- Posts: 9
[SOLVED] Crackle and pop commencing play
I have a Dell Optiplex 3050 micro Core i3 with built in Intel PCH/Realtek ALC3234 (I think) audio.
When playing into the 3.5mm headset/mic input jack (on the front panel) from my laptop 3.5mm audio out, I get a crackle/pop on commencing play (e.g. from Foobar) and then a thump about 3 seconds after I stop the song (or it ends).
If I restart the song or resume, within the 3 seconds of pausing / stopping - no crackle or thump. It's as if the card is deactivating.
I already have a /etc/modprobe.conf file to turn power_save and powerconfirmed power management is turned off as per the following:
[root@arch-pc-debug modprobe.d]# cat /etc/modprobe.d/snd_hda_intel.conf
options snd_hda_intel power_save=0
options snd_hda_intel power_save_controller=NAnd confirmed:
[root@arch-pc-debug ~]# cat /sys/module/snd_hda_intel/parameters/power_save
0
[root@arch-pc-debug ~]# cat /sys/module/snd_hda_intel/parameters/power_save_controller
NI have also tried creating a dsnoop alsa device and continuously recorded to it (in the hope of keeping the hardware alive incase there is some sort of turning off) but the problem remains, eg:
[root@arch-pc-debug modprobe.d]# arecord -D asnoop -f cd /dev/zero
Recording WAVE '/dev/zero' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
/etc/asound.conf
(snip - dsnoop device)
pcm.asnoop {
type dsnoop
ipc_key 219347
hw_ptr_alignment "roundup"
slave {
pcm "hw:CARD=PCH"
format S16_LE
rate 44100
}
}I tried a plug in USB5.1 soundcard - using its audio input (line in) and there are no playback start click/pop then thump like the onboard Dell card. So I know it's not the source (my laptop soundcard / foobar playback chain) - nor the output (whether onboard dell speaker, or my DM7).
I only get the song start click when the onboard PCH mic/line in jack is used
In summary these combinations are good:
Laptop (foobar) -> 3.5mm line out -> (optiplex attached) USB 5.1 (line in) -> Camilla-DSP -> Optiplex onboard speaker (PCH device)
Laptop (foobar) -> 3.5mm line out -> (optiplex attached) USB 5.1 (line in) -> Camilla-DSP -> (external USB attached) DM7 -> amp/speakers
This combination has the playback start crackle/pop
Laptop (foobar) -> 3.5mm line out -> (optiplex in built) PCH (headset/mix in) -> Camilla-DSP -> Optiplex onboard speaker (PCH device)
Additional dumps if useful:
[root@arch-pc-debug modprobe.d]# uname -ar
Linux arch-pc-debug 6.2.9-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 30 Mar 2023 14:51:14 +0000 x86_64 GNU/Linuxlspci -nn -v
(snip)
00:1f.3 Audio device [0403]: Intel Corporation 200 Series PCH HD Audio [8086:a2f0]
Subsystem: Dell Device [1028:07a3]
Flags: bus master, fast devsel, latency 32, IRQ 134
Memory at f7220000 (64-bit, non-prefetchable) [size=16K]
Memory at f7200000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [50] Power Management version 3
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel, snd_soc_avsdmesg | grep snd
(snip)
[ 2102.807192] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 2102.861813] snd_hda_codec_realtek hdaudioC1D0: autoconfig for ALC3234: line_outs=1 (0x1b/0x0/0x0/0x0/0x0) type:line
[ 2102.861819] snd_hda_codec_realtek hdaudioC1D0: speaker_outs=1 (0x14/0x0/0x0/0x0/0x0)
[ 2102.861822] snd_hda_codec_realtek hdaudioC1D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[ 2102.861825] snd_hda_codec_realtek hdaudioC1D0: mono: mono_out=0x0
[ 2102.861826] snd_hda_codec_realtek hdaudioC1D0: inputs:
[ 2102.861828] snd_hda_codec_realtek hdaudioC1D0: Headset Mic=0x19
[ 2102.861830] snd_hda_codec_realtek hdaudioC1D0: Headphone Mic=0x1a[root@arch-pc-debug modprobe.d]# lsmod | sort
ac97_bus 16384 1 snd_soc_core
acpi_pad 24576 0
aesni_intel 401408 6
bpf_preload 24576 0
ccm 20480 9
cec 86016 2 drm_display_helper,i915
cfg80211 1277952 3 rtlwifi,mac80211,rtl8xxxu
coretemp 20480 0
crc16 16384 1 ext4
crc32c_generic 16384 0
crc32c_intel 24576 4
crc32_pclmul 16384 0
crct10dif_pclmul 16384 1
cryptd 32768 2 crypto_simd,ghash_clmulni_intel
crypto_simd 16384 1 aesni_intel
dcdbas 24576 1 dell_smbios
dell_smbios 32768 1 dell_wmi
dell_wmi 32768 0
dell_wmi_descriptor 20480 2 dell_wmi,dell_smbios
dm_mod 225280 0
drm_buddy 20480 1 i915
drm_display_helper 208896 1 i915
ee1004 20480 0
ext4 1163264 2
fat 102400 1 vfat
fuse 204800 1
gf128mul 16384 1 polyval_generic
ghash_clmulni_intel 16384 0
i2c_i801 45056 0
i2c_smbus 20480 1 i2c_i801
i915 3788800 2
intel_cstate 24576 0
intel_gtt 28672 1 i915
intel_pmc_bxt 16384 1 iTCO_wdt
intel_powerclamp 20480 0
intel_rapl_common 36864 1 intel_rapl_msr
intel_rapl_msr 20480 0
intel_tcc_cooling 16384 0
intel_uncore 258048 0
ip_tables 40960 0
irqbypass 16384 1 kvm
iTCO_vendor_support 16384 1 iTCO_wdt
iTCO_wdt 16384 0
jbd2 217088 1 ext4
kvm 1323008 1 kvm_intel
kvm_intel 446464 0
ledtrig_audio 16384 3 snd_ctl_led,snd_hda_codec_generic,dell_wmi
libarc4 16384 1 mac80211
libphy 192512 3 r8169,mdio_devres,realtek
loop 40960 0
mac80211 1490944 4 rtl_usb,rtl8192cu,rtlwifi,rtl8xxxu
mac_hid 16384 0
mbcache 16384 1 ext4
mc 81920 1 snd_usb_audio
mdio_devres 16384 1 r8169
mei 192512 7 mei_wdt,mei_hdcp,mei_pxp,mei_me
mei_hdcp 28672 0
mei_me 61440 3
mei_pxp 20480 0
mei_wdt 16384 0
Module Size Used by
nvme 69632 3
nvme_common 24576 1 nvme_core
nvme_core 237568 4 nvme
pcspkr 16384 0
polyval_clmulni 16384 0
polyval_generic 16384 1 polyval_clmulni
r8169 114688 0
rapl 20480 0
realtek 40960 0
rfkill 40960 4 rtlwifi,cfg80211
rtl8192c_common 81920 1 rtl8192cu
rtl8192cu 110592 0
rtl8xxxu 208896 0
rtl_usb 28672 1 rtl8192cu
rtlwifi 155648 3 rtl8192c_common,rtl_usb,rtl8192cu
sha512_ssse3 57344 0
snd 151552 16 snd_ctl_led,snd_hda_codec_generic,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_aloop,snd_pcm,snd_rawmidi
snd_aloop 40960 0
snd_compress 32768 2 snd_soc_avs,snd_soc_core
snd_ctl_led 24576 0
snd_hda_codec 217088 6 snd_hda_codec_generic,snd_soc_avs,snd_hda_codec_hdmi,snd_soc_hda_codec,snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec_generic 110592 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 94208 1
snd_hda_codec_realtek 196608 1
snd_hda_core 139264 8 snd_hda_codec_generic,snd_soc_avs,snd_hda_codec_hdmi,snd_soc_hda_codec,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek
snd_hda_ext_core 36864 2 snd_soc_avs,snd_soc_hda_codec
snd_hda_intel 65536 0
snd_hwdep 20480 2 snd_usb_audio,snd_hda_codec
snd_intel_dspcfg 36864 2 snd_soc_avs,snd_hda_intel
snd_intel_sdw_acpi 20480 1 snd_intel_dspcfg
snd_pcm 200704 10 snd_soc_avs,snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_compress,snd_soc_core,snd_aloop,snd_hda_core,snd_pcm_dmaengine
snd_pcm_dmaengine 20480 1 snd_soc_core
snd_rawmidi 53248 1 snd_usbmidi_lib
snd_seq_device 16384 1 snd_rawmidi
snd_soc_avs 217088 0
snd_soc_core 434176 2 snd_soc_avs,snd_soc_hda_codec
snd_soc_hda_codec 28672 1 snd_soc_avs
snd_timer 53248 2 snd_aloop,snd_pcm
snd_usb_audio 442368 0
snd_usbmidi_lib 53248 1 snd_usb_audio
soundcore 16384 2 snd_ctl_led,snd
sparse_keymap 16384 1 dell_wmi
ttm 102400 1 i915
uas 36864 0
usbhid 81920 0
usb_storage 86016 1 uas
vfat 24576 1
video 73728 2 dell_wmi,i915
wmi 45056 5 video,dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor
wmi_bmof 16384 0
x86_pkg_temp_thermal 20480 0
xhci_pci 24576 0
xhci_pci_renesas 24576 1 xhci_pci
x_tables 61440 1 ip_tablesin the following, the DM7 is an 8 channel DAC going to be used to support an active speaker crossover. It will be fed with Camilla-DSP, sourcing from the snd_aloop device (also loaded).
The USB 5.1 sound card is purely there for test purposes (doesn't impact the problem with, or without it connected).
[root@arch-pc-debug ~]# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: DM7 [DM7], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC3234 Analog [ALC3234 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: ICUSBAUDIO7D [ICUSBAUDIO7D], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 3: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7[root@arch-pc-debug ~]# arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: PCH [HDA Intel PCH], device 0: ALC3234 Analog [ALC3234 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 2: ALC3234 Alt Analog [ALC3234 Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: ICUSBAUDIO7D [ICUSBAUDIO7D], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 3: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7Last edited by DaveBullet (2023-04-13 19:48:06)
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#2 2023-04-13 19:47:14
- DaveBullet
- Member
- Registered: 2023-03-14
- Posts: 9
Re: [SOLVED] Crackle and pop commencing play
Ok - dumb me. It is my stupid Windows 10 source laptop with very aggressive power management settings.
I had just blamed my fresh Linux install and poor configuration skills. not a problem at all 
Although not sticky between reboots, and for the benefit of others, the Realtek chipset required these binary keys to be set to 4 zeroes:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e96c-e325-11ce-bfc1-08002be10318}\0001\PowerSettings
ConservationIdleTime
IdlePowerState
PerformanceIdleTime
This changes power management from S3 to D0 (disable).
Now to find out how to make it sticky.
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